| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | primary | 394 |
76.7%
|
| 2 | secondary i | 89 |
17.3%
|
| 3 | secondary ii | 20 |
3.9%
|
| 4 | higher | 9 |
1.8%
|
| 8 | dk | 2 |
0.4%
|
| Sysmiss | 4629 |